Oil-sprayer for gas-generators.



No. 645,596. Patented IIaLQOQINJ.

` J. P. JOHNSTON & E. E. MORRELL. `0|L lSPRAYER lFOR GAS GENHATUBS. (Applicashun med 0mm, 189s.) (No Model.)

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YH: Nonms uniss oo.. PHoTaLlTH'a.. WASHINGTON, D, c4

UNITED STATES PATENT OFFICE.

JOI-IN P. JOHNSTON AND EDWARD E. MORRELL, OF OAK PARK, ILLINOIS.

SPECIFICATION fOrmihg part Of Letters Patent N0. 645,596, dated March 20, 1900. Application filed October 12, 1898. Serial No, 693,298. v(No model.)

To @ZZ whom, it' may con/cern:

Beit known that we, JOHN P. JOHNSTON and EDWARD E. MORRELL, citizens of the United States, residing at Oak Park, in the county of Oook and State of Illinois, have invented cer# tain new and useful Improvements in Spraying Devices for Carbureters, rbc., of which the following is a specification, reference being had to the accompanying drawings.

Our invention relates to spraying devices for delivering oil or other liquid hydrocarbon evenly in a fine mist over the interior of the carbureter or superheater of a Water-gas-generatin g apparatus. Allprevious devices that have been used for this purpose are decient and unsatisfactory in that they do not distribute the oil evenly over the entire surface heater or carbureterin the upper end of which of the hot checker-brick, and it is therefore impossible to keep the checker-brick at an even temperature, causing a great loss of oil in the carbureting of water-gas and resultingv in the formation of lampblack or other yfixed carbon in the hot portions of the superheater and of tar in the cooler parts thereof. Furthermore, former devices have not been successful, as the intense heat cracks the nozzles employed and results in the formation of a small deposit of carbon on them, either of which circumstances prevents the uniform distribution of the liquid hydrocarbon. A further objection to prior constructions, besides the large waste of oil, is that the checkerbrick rapidly deteriorates, necessitating the frequent cleaning and renewal of the parts of the carbureters or superheaters.

One object of onrpresent invention is to avoid the objections above pointed out and to provide a spraying device which evenly and thoroughly distributes the oil or other hydrocarbon used in a fine mist over the checkerbrick.

A further object is to provide means by which the speed of the spraying devices may be regulated, thereby controlling the amount of oil supplied in a given time.

To this end our invention consists in providing steam or compressed-air operated apparatus for rotating the nozzle through which the oil is discharged into the superheater and in certain other improvements which will be hereinafter pointed out.

In this connection we wish to state that alform of nozzle for the oil-pipe. Fig. f1 is a vertical section of the same. Fig. 5 is a plan view of another form of nozzle. Fig. 6 is a vertical section of the sam e.

In the drawings, 9 indicates a part of a superthe oil-feeding devices are mounted.-

10 indicates a suitable frame having atubular portion mounted in the superheater 9 and adapted to support an oil-pipe 11, which,

as shown in Fig. 1, is mounted therein in a.

vertical position. The frame 10 and the extension l0a thereof, which may be an ordinary standard steam-pipe connected to the frame by a coupling-sleeve 10b, areinsulated by asbestos rope 10c in order to protect them and the oil-pipe 11 from the intense heat of Y the superheater. The oil-pipe 11 is supported in position by awheel 12, mounted in a horizontal position upon the upper end of the frame 10, as shown 'in Fig. 1, and is guided by the bushing 11, secured to the frame 10, suitable ball-bearings 13 being preferably provided in order to facilitate the rotation of said wheel. in Fig. 1 the wheel 12 is fixedly secured to the pipe 11, so that said pipe rotates with said Wheel. At the upper end of the frame l0 a steam-chamber 14 is provided, formed by a flanged web 15, secured upon the upper end of the frame 10, and a cover-plate 16,which is secured to the flange 17 of the web 15. The wheel 12 is mounted in said chamber 14, which is provided with a steam-inlet 18 and an outlet 19, as shown in Figs. land 2.- The wheel 12 is provided with a series of projecting wings 20 around its periphery, against which the incoming steam is directed, thereby causing said wheel to rotate in the direction in dicated by the arrow in Fig. 2.

In the form of apparatus shown IOO The oil-pipe 1l communicates at its upper slit 25, as shown in Figs. 3 and 4, may be pro-` vided, or a greater or less number of orifices may be provided, as illustrated in Figs. 1, 5, and 6.

In operation the oil is admitted from pipe 2l to pipe 11, which is rotated at a high rate of speed by steam supplied through inlet 18 and exhausting through outlet 19. The high speed at which the pipe 11 rotates causes the downiiowing oil to adhere to the inner surface of the pipe 11 and to be spread out thereover in a thin layer, gradually passing down to the nozzle 23. The rapid rotation of said nozzle and the high speed at which the oil :is caused to rotate causes it to be spread by centrifugal force in a tine mist over the interior of the superheater and distributes it uniformly, so that it is applied to all-parts of the checker-brick, preventing 4the formad tion of lampblack or tar, and consequently preserving the superheater in proper form for efficient service, as hereinbefore suggested.

It will be obvious that by varying the speed at which the nozzle is rotated the distribution of the oil may be varied, and it may also be varied by adjusting the valve 22.

It Will be understood that various modifications such as would occur to any one skilled ln the art may be made, and We therefore do not wish to be limited to the specific details of the construction illustrated except as set forth in the claims. Furthermore, the use of our improvements is not limited to gas apparatus, as they may be applied to lnany other uses-as, for example, they may be employed to supply oil or other suitable liquid fuel to l furnaces, &c.-and it will be understood that our invention is not limited Ato the arrangement of the parts in a vertical position, as shown in thedrawings.'

That which We claim as our invention, and desire tosecure by `Letters Patent, is-

1. In a gas apparatus, the combination with the generating or carburetiug chamber thereof and an oil-supply pipe entering said chamber having a nozzle at one end, of tluidpressure-operated mechanism at the supply end ot' said pipe for rotating it, and means for preventing the actuating uid from entering said pipe and said chamber, substantially as described. p i

2. In a gas apparatus, the combination with the generating or carburetingchamber thereof, of an oil-supply pipe entering said 1 chamber, a nozzle thereon, iuid-pressure--operated mechanism outside said chamber for rotating said nozzle, and meansforpreventing the actuating fluid from entering said pipe and said chamber, substantially as described.

3. In a gas apparatus, the combination with the generating or `carbureting chamber thereof, of an oil-supply pipe `entering said chamber and provided with a nozzle, a casing outside said chamber provided Withinlet and Vexhaust passages for fiuid under pressure, a

rotary Wheel mounted in said casing secured to said pipe,and provided with Wings or blades adapted to be acted upon by the fluid entering said casing, and means for preventing said fluid under pressure from entering saidV supply-pipe and said chamber, substantially as described.

JOHN P.'JOI^INSTON. EDWARD E. MORRELL.

Witnesses:

JOHN L. JACKSON, ALBERT H. ADAMS. 

